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authorMarek Vasut <marex@denx.de>2012-11-18 06:25:07 +0100
committerWolfram Sang <w.sang@pengutronix.de>2012-11-22 23:03:34 +0100
commit958f9889950ef257f601c4902137caff291d5dd7 (patch)
treee7feaa68cd2a814384ec7d01a7f0bf6f89a3ccd5 /drivers
parent963f2076e3b4d62e219b3fa60de7b50e335f5783 (diff)
downloadvexpress-lsk-958f9889950ef257f601c4902137caff291d5dd7.tar.gz
i2c: mxs: Handle i2c DMA failure properly
Properly terminate the DMA transfer in case the DMA PIO transfer or setup fails for any reason. Signed-off-by: Marek Vasut <marex@denx.de> Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/i2c/busses/i2c-mxs.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/i2c/busses/i2c-mxs.c b/drivers/i2c/busses/i2c-mxs.c
index 286ca191782..0670da79ee5 100644
--- a/drivers/i2c/busses/i2c-mxs.c
+++ b/drivers/i2c/busses/i2c-mxs.c
@@ -287,12 +287,14 @@ read_init_dma_fail:
select_init_dma_fail:
dma_unmap_sg(i2c->dev, &i2c->sg_io[0], 1, DMA_TO_DEVICE);
select_init_pio_fail:
+ dmaengine_terminate_all(i2c->dmach);
return -EINVAL;
/* Write failpath. */
write_init_dma_fail:
dma_unmap_sg(i2c->dev, i2c->sg_io, 2, DMA_TO_DEVICE);
write_init_pio_fail:
+ dmaengine_terminate_all(i2c->dmach);
return -EINVAL;
}